The Peckham Project has three leading facades: two leaning in at 5 and 30 degrees, one leaning out at 20 degrees. This presents a technical issue for the window fabricators (air and water egress according to Velfac…) which lead us to the renovation of the John Hancock Centres’s observation deck which leans out 30 degrees to afford the viewer a vertiginous outlook of Chicago from 450m above ground level. In the video, the guy in the white shirt looks less enthralled…